<!-- 参考 code/2/1-import-cdn.html 文件 -->
<!DOCTYPE html>
<html lang="en-US">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1" />
    <title>Vue直接引入Script资源</title>
    <!-- 引入 CDN 资源 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">{{ message }}</div>
<div id="app-2">
    <span v-bind:title="message">
    鼠标悬停几秒钟查看此处动态绑定的提示信息！
  </span>
</div>
<div id="app-3">
    <p v-if="seen">现在你看到我了</p>
</div>
<div id="app-4">
    <ol>
        <li v-for="todo in todos">
            {{ todo.text }}
        </li>
    </ol>
</div>

<script>
    // 初始化 Vue 实例
    new Vue({
        el: "#app",
        data(){
            return{
                message: "hello world!",
            }
        }
    });
    var app = new Vue({
        el: "#app-2",
        data: {
            message: '页面加载于 ' + new Date().toLocaleString()

        }
    });
    var app3 = new Vue({
        el: '#app-3',
        data: {
            seen: true
        }
    })
    var app4 = new Vue({
        el: '#app-4',
        data: {
            todos: [
                { text: '学习 JavaScript' },
                { text: '学习 Vue' },
                { text: '整个牛项目' }
            ]
        }
    })
</script>
</body>
</html>